

package com.hazelcast.query.impl.predicates;

import com.hazelcast.internal.serialization.BinaryInterface;
import com.hazelcast.query.impl.Index;
import com.hazelcast.query.impl.QueryContext;

@BinaryInterface
public abstract class AbstractIndexAwarePredicate<K, V> extends AbstractPredicate<K, V> implements IndexAwarePredicate<K, V> {

    protected AbstractIndexAwarePredicate() {
    }

    protected AbstractIndexAwarePredicate(String attributeName) {
        super(attributeName);
    }

    protected Index getIndex(QueryContext queryContext) {
        return matchIndex(queryContext, QueryContext.IndexMatchHint.NONE);
    }

    protected Index matchIndex(QueryContext queryContext, QueryContext.IndexMatchHint matchHint) {
        return queryContext.matchIndex(attributeName, matchHint);
    }

    @Override
    public boolean isIndexed(QueryContext queryContext) {
        return getIndex(queryContext) != null;
    }

}
